Regional characteristics of air pollution in Japan

Makiko Nakata; Shujing Deng

doi:10.1117/12.2572559

20 September 2020 Regional characteristics of air pollution in Japan

Makiko Nakata, Shujing Deng

Proceedings Volume 11531, Remote Sensing of Clouds and the Atmosphere XXV; 115310P (2020) https://doi.org/10.1117/12.2572559
Event: SPIE Remote Sensing, 2020, Online Only

Conference Poster

Abstract

Air pollution in Japan has decreased from the elevated levels found during the period of high economic growth. However, in recent years there is increasing concern regarding air pollution caused by fine particulate matter (PM_2.5) and its effect on human health. First, we investigated the seasonal and regional characteristics of air pollution caused by PM_2.5 using ground measurements in China and Japan. Next, the cause of air pollution was classified as urban air pollution or transboundary air pollution. Air pollution in Fukuoka (in southwestern Japan) is strongly affected by transboundary air pollution. Nearly half of all air pollution in Tokyo (in eastern Japan) may be urban pollution caused by local emissions. PM_2.5 high concentration from winter to spring is often caused by transboundary air pollution. On the other hand, PM_2.5 high concentration from summer to autumn is greatly influenced by urban pollution. Air pollution caused by PM_2.5 high concentration tends to decrease in Japan. This is due to both a reduction in PM_2.5 emissions in Japan and a decrease in PM_2.5 concentrations in China.

Conference Presentation

Citation Download Citation

Makiko Nakata and Shujing Deng "Regional characteristics of air pollution in Japan", Proc. SPIE 11531, Remote Sensing of Clouds and the Atmosphere XXV, 115310P (20 September 2020); https://doi.org/10.1117/12.2572559

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